Find the common difference d for the arithmetic sequence. 3x + 2y, 4x + 5y, 5x + 8y, ... d = (Simplify your answer.)In an arithmetic sequence a3 = 2 and as = 20. Determine a, . a1 = (Type an integer or a simplified fraction.)Find the sum of the first 10 terms for the following arithmetic sequence. a2 - 1, a4 = 5 The sum of the first 10 terms is